import javax.servlet.ServletContext;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Properties;

@WebServlet("/contextservlet02")
public class ContextServlet02 extends HttpServlet {
    @Override
    protected void service(HttpServletRequest req,
                           HttpServletResponse resp) throws IOException {
        resp.setContentType("text/html;charset=UTF-8");
        ServletContext context = this.getServletContext();
        InputStream in = context.getResourceAsStream(
                "/WEB-INF/classes/db.properties");
        Properties prop = new Properties();
        prop.load(in);
        PrintWriter pw = resp.getWriter();
        pw.println("username的值: "+prop.getProperty("username") + "<br>");
        pw.println("userpassword的值："+prop.getProperty("userpassword"));

    }
}
